Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jun. 30, 2022	9,191,406			3,061,795
Balance at Jun. 30, 2022	$ 89	$ 30,423	$ 77,661	$ (21,352)	$ 1,699	$ 88,520
Compensation expense related to stock compensation plans	0	235	0	0	0	235
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	545	545
Net income (loss)	$ 0	0	1,053	$ 0	0	1,053
Treasury Stock Acquired, Shares (in shares)	0			46,795
Repurchase of common stock	$ 0	0	0	$ (497)	0	(497)
Balance (in shares) at Sep. 30, 2022	9,191,406			3,108,590
Balance at Sep. 30, 2022	$ 89	30,658	78,714	$ (21,849)	2,244	$ 89,856
Balance (in shares) at Jun. 30, 2023	9,314,406			3,240,593		6,073,813
Balance at Jun. 30, 2023	$ 91	31,436	80,183	$ (22,855)	(83)	$ 88,772
Compensation expense related to stock compensation plans	$ 0	302	0	$ 0	0	302
Issuance of common stock for restricted stock grants (in shares)	15,000			0
Issuance of common stock for restricted stock grants	$ 0	0	0	$ 0	0	0
Change in minimum pension liability, net of tax					(5)	(5)
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax	0	0	0	0	441	441
Net income (loss)	$ 0	0	(695)	$ 0	0	$ (695)
Treasury Stock Acquired, Shares (in shares)						46,795
Balance (in shares) at Sep. 30, 2023	9,329,406			3,240,593		6,088,813
Balance at Sep. 30, 2023	$ 91	$ 31,738	$ 79,488	$ (22,855)	$ 353	$ 88,815